278206513

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{769}}^1\times {\mathrm{1637}}^1$

素因数の和:2436

約数の個数: 16

約数和(自身を含む): 317837520

約数和(自身を除く): 39631007

約数列:

[1, 13, 17, 221, 769, 1637, 9997, 13073, 21281, 27829, 169949, 361777, 1258853, 16365089, 21400501, 278206513]

約数ペア:

[(1, 278206513), (13, 21400501), (17, 16365089), (221, 1258853), (769, 361777), (1637, 169949), (9997, 27829), (13073, 21281)]